About C Software

Engineering trusted by those who protect us

A UK software house specialising in the rapid delivery of secure, sensitive applications for tactical and operational environments.

Who we are

A UK software house for mission-critical work

C Software is a UK software house with a UK-based engineering team. For more than 25 years we have built secure, mission-critical software for the organisations that protect people and prosperity: defence, national security, law enforcement and critical national infrastructure.

Our mission

“To be a class-leading supplier of software and solutions that help the UK and friendly nations protect their prosperity and people.”

C Software mission statement
What we do

From secure comms to bespoke systems, built end to end

We design, build, deploy and support software across the whole mission lifecycle, from the operator at the tactical edge to the operations room at HQ.

We specialise in the rapid delivery of sensitive applications for tactical environments, engineered by our UK-based team, and in fast support across the wider system around the software.

  • Figures watching a city at night

    The NOMAD Programme

    Our own portfolio of secure capabilities for tactical communications, secure networking and situational awareness, designed to work as one system.

    Explore NOMAD
  • Engineer working in a secure server facility

    Bespoke engineering

    Desktop, mobile and cloud software built around a requirement no off-the-shelf product meets: enterprise C# WPF applications for Windows, Android apps, and Linux, IoT and server solutions.

    See solutions
Our history

More than 25 years of secure software

  1. 1999

    C Software Limited is founded on 18 March 1999. As the name suggests, the company began by specialising in C development.

  2. 2016

    The company gains ISO 9001 certification for quality management.

  3. 2017

    C Software begins delivering capability internationally, supporting the UK’s friends and allies.

  4. 2023

    The NOMAD Programme launches, bringing the company’s capabilities together as one secure ecosystem.

  5. 2026

    C Software achieves Defence Cyber Certification (DCC) Level 0.

  6. Sept 2026

    C Software joins Aegis Capital Partners.

Careers

Interested in joining the team?

We're always keen to hear from engineers who want to build technology that matters.

CVs or recruitment enquiries can be sent to hr@csoftware.co.uk

Email HR